Engine-CodesCadillac – P1185 Cadillac

P1185 Cadillac Code - Engine Oil Temperature Sensor Circuit

Quick Answer

The P1185 Cadillac code refers to an issue with the engine oil temperature sensor circuit. Common causes include Faulty engine oil temperature sensor, Wiring issues or a short in the sensor circuit, Corrosion or damage to sensor connectors. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1185 Cadillac indicates Engine Oil Temperature Sensor Circuit.
Common causes
Common causes include Faulty engine oil temperature sensor, Wiring issues or a short in the sensor circuit, Corrosion or damage to sensor connectors.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1185 Cadillac Description

The P1185 Cadillac code refers to an issue with the engine oil temperature sensor circuit. This sensor is responsible for monitoring the temperature of the engine oil, which is crucial for maintaining optimal engine performance and preventing damage. When this sensor circuit malfunctions, it can lead to various problems within the vehicle's systems.

OBDII Code P1185 Cadillac - Engine Oil Temperature Sensor Circuit
P1185 Cadillac Code - Engine Oil Temperature Sensor Circuit

Common Causes of P1185 Cadillac

  1. Faulty engine oil temperature sensor
  2. Wiring issues or a short in the sensor circuit
  3. Corrosion or damage to sensor connectors
  4. Engine oil contamination affecting sensor readings
  5. Engine computer (ECU) malfunction

Symptoms of P1185 Cadillac

  1. Check engine light illuminated on the dashboard
  2. Engine running hotter than usual
  3. Decreased fuel efficiency
  4. Engine misfires or rough idling
  5. Reduced engine performance

How to Fix P1185 Cadillac

  1. Begin by diagnosing the issue using an OBD-II scanner to confirm the P1185 code.
  2. Inspect the engine oil temperature sensor and its wiring for any damage or corrosion.
  3. Test the sensor's resistance and voltage to determine if it is functioning correctly.
  4. Replace the engine oil temperature sensor if it is found to be faulty.
  5. Clear the code from the ECU and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1185 Cadillac

The cost of repairing the P1185 Cadillac code can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing the engine oil temperature sensor can range from $100 to $300, including parts and labor. Additional costs may apply if there are other underlying issues that need to be addressed. It's recommended to consult with a qualified mechanic to get an accurate estimate based on your vehicle's make and model.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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